really loud, handle a ton of power for highs, good tweeters

no bass, harsh highs from the woofer

sound is pretty harsh, i use them with the infinity reference 2 channel amp perfectly match

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i like the pbx power bass better

I like the color of the tweeter mounts, they go along with my grey leather interior and silver head unit. The crossover can be set up to 0 for the tweeters if -3 is too harsh on your ears. Easy to install.

Not enough bass in the 6.5.

This is a nice set. I wanted MB Quart but wasn't sure if the 6.5 would fit in the door so I went with Infinity. I've been pleased with the setup so far. The tweeters are great. I was looking for that crisp sound and they definitely give it to you. The 6.5s could use more mid bass though. Other than that they are great.

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Pioneer components and Stock

Bass extension to 40hz (flat to 45, only 3db down at 40). You don't really need any rear speakers at all with these, unless you put a pair back there also. The bass is all there, unless you want a sub for the last octave from 40-20 hz. The crossover has a -3dB or 0 db choice for the tweeter, and you can reverse polarity to compensate for tweeter placement. This was very critical for best sound: I chose -3db and reversed polarity because my tweets were installed on the dash, in the corner of the windows. (speakers are designed assuming tweets and mids are same distance from ear. IF there is a 1" difference, there can be a 5-6Db hole (sound level 75% reduced at that point) reversing polarity + - hookup of tweeter can fix this.

None. I bought and installed four previous sets of speakers: Blaupunkt, Kenwood, Polk and Boston rx67. All were screechey compared to 6000cs infinity. Just cannot say enough good about these awesome speakers.

Abolutely Fabulous set of speakers, unmatched by Polk or Boston, which sound screechy by comparison!!!!! Buy components over coax because components have a crossover which will eliminate the peakey characteristics of a 6.5" midbass speaker, and can compensate for the fact that your ear will be off the speaker's ideal axis by at least 45 degrees. They are unbelievable smooth sounding. Silk soft tweeter, used in only the most expensive high end home audio. These are flat-I tested them at the driver's ear(perfect for a speaker) from 45hz to 20 k, + or - 1.5db except freqs. which cancel because of placement in the auto.

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Kenwood, Blaubpunkt, Polk, Boston rx67. Infinity 6000cs are audiophile quality smooth sound. THe others are puffy midbass (100hz and up) screechey (midrange +6dB... quadrupling of volume at that frequ

They look cool.

They are weak. Definitely get the kappas if you are going to put any significant power to them. They also smell pretty bad when the voice coils burn up.

Bought this set of components new off of e-bay. I hooked them up to a PPI 480 which gives each 80 watts. They are rated at 90rms and 270 peak. They sounded great for the first two days I had them hooked up. I went on a road trip, played them for about an hour straight, then they burned up. Everything was hooked up correctly and they didn't short out. I think they just couldn't handle the power that they claim to be able to handle.

Strong mids and tweter is the same as the kappa. They sound rich and full. Very detailed.

Well I'm a carpenter and I am mecanically minded but this instalation took me a full day. I ran all new 14gage speaker wire. To make it look like it was always there I had to take off both doors and then take apart my doors. I cut the hole in the doors with a dremmel tool wich worked nice. Anyway if you use the crapy factory wire I'm sure it wouldn't as long, but my Honda wire is only 20 gage that is small! After all the work it looks great too.

The sound great and for the price they can not be beat.

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First component system, but let me say it sounds so, so much better than a two or three way speaker!!!

Overall decent performence.

The midwoofer can't take much power without starting to breakup. I have a 7 year old set of Polk Audio MM3065 components that blow these away in the midbass area.

I would rate these speakers a little above average. The tweeters are more tame than the Kappa series which I find to be entirely too aggressive sounding.

Try them out, and you will immediately see the difference! Nice variety of mounting positions for the tweeter.

Best to get 2 pairs Front and Rear, 6x9''s cant touch their range and clarity.(pro or con?)U decide.

What can I say.. Great speakers, I have them powered with a Clarion ProAudio 4204. The highs are amazing! I have the mids crossed at 60 and then let my sub handle the rest, pair these speakers up with a Srw3041 Sub and you will have a great spl and sql system. They overwhelm my rears(6953i)and as a result I am getting another set of these to replace them.

Everything, especially the price! I purchased them on Ebay.

None!

Fanatastic speakers! Crisp Highs! Non-Boomy Mids! Great amount of mounting options for tweeter. I put BrownBread down in the doors and its amazing the clear bass the Mids produce! I havent even put an amp to them yet and they sound smooth.

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Polk, Kenwood, Pioneer

Great Sounding, Deep bass, easy to install

Clear, crisp sound.

None

Great sounding speakers! Very good mounting Hardware.

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Custic, JBL, Sony.